中文摘要：

天然气水合物录井过程中,与振动筛相连接的脱气装置其脱气效率非常低,为解决该问题,研制了专用于天然气水合物录井的脱气装置并对其性能进行了室内试验。采用长0.7m、宽0.7m、高1.7m的试验装置,开展了气液比10%~30%、转速0.33~1.33r/s条件下的脱气效率数值模拟研究和室内试验。研究发现,在相同转速条件下,气液比为30%时模拟和室内试验得出的脱气装置的脱气效率最高;在相同气液比条件下,转速1.00r/s时脱气装置的脱气效率最高。研究结果表明,研制的天然气水合物脱气装置能显著提高脱气效率,最优工况为气液比30%、转速1.00r/s。

英文摘要：

During gas hydrate logging, degassing devices connected with the shale shaker have extremely low degassing efficiencies. Accordingly, degassing devices designated for gas hydrate logging have been developed. To determine the performances of these devices, lab tests were performed. By using ex- periment facilities with a length of 0.7 m, a width of 0. 7 m and a height of 1.7 m, numerical simulations and lab tests were conducted with gas/liquid ratios of 10%-30%and rotation speeds of 0.33-1.33 r/s to determine the degassing efficiencies of these facilities. Test results showed that under identical rotation speeds, the maximum degassing efficiency of the degassing device could be achieved with gas/liquid ratio of 30% in both numerical simulation and lab tests. At the same time, under identical gas/liquid ratio, the highest degassing efficiency could be observed in degassing devices with a rotation speed of 1.00 r/s. Research results showed that gas hydrate degassing devices could significantly enhance degassing efficiency with an optimal gas/liquid ratio of 30% and a rotation speed of 1.00 r/s.